Use a publisher to get manga details. Refactor CatalogueListPresenter
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3 changed files with 98 additions and 66 deletions
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@ -1,6 +1,9 @@
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package eu.kanade.mangafeed.presenter;
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import android.content.Intent;
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import android.widget.ImageView;
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import com.bumptech.glide.Glide;
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import java.util.ArrayList;
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import java.util.List;
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@ -41,6 +44,7 @@ public class CatalogueListPresenter extends BasePresenter {
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private Subscription mSearchViewSubscription;
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private Subscription mMangaDetailFetchSubscription;
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private PublishSubject<Observable<String>> mSearchViewPublishSubject;
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private PublishSubject<Observable<List<Manga>>> mMangaDetailPublishSubject;
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public CatalogueListPresenter(CatalogueListView view) {
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@ -49,17 +53,79 @@ public class CatalogueListPresenter extends BasePresenter {
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}
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public void initialize() {
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initializeSource();
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initializeAdapter();
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initializeSearch();
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initializeMangaDetailsLoader();
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getMangasFromSource(1);
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}
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private void initializeSource() {
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int sourceId = view.getIntent().getIntExtra(Intent.EXTRA_UID, -1);
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selectedSource = sourceManager.get(sourceId);
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view.setSourceTitle(selectedSource.getName());
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}
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private void initializeAdapter() {
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adapter = new EasyAdapter<>(view.getActivity(), CatalogueListHolder.class);
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view.setAdapter(adapter);
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view.setScrollListener();
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}
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initializeSearch();
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private void initializeSearch() {
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mSearchName = "";
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mSearchMode = false;
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mSearchViewPublishSubject = PublishSubject.create();
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getMangasFromSource(1);
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mSearchViewSubscription = Observable.switchOnNext(mSearchViewPublishSubject)
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.debounce(SEARCH_TIMEOUT, TimeUnit.MILLISECONDS)
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.subscribeOn(Schedulers.io())
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe(
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this::queryFromSearch,
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error -> Timber.e(error.getCause(), error.getMessage()));
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subscriptions.add(mSearchViewSubscription);
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}
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private void initializeMangaDetailsLoader() {
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mMangaDetailPublishSubject = PublishSubject.create();
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mMangaDetailFetchSubscription = Observable.switchOnNext(mMangaDetailPublishSubject)
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.subscribeOn(Schedulers.io())
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.flatMap(Observable::from)
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.filter(manga -> !manga.initialized)
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.buffer(5)
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.concatMap(localMangas -> {
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List<Observable<Manga>> mangaObservables = new ArrayList<>();
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for (Manga manga : localMangas) {
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Observable<Manga> tempObs = selectedSource.pullMangaFromNetwork(manga.url)
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.subscribeOn(Schedulers.io())
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.flatMap(networkManga -> {
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Manga.copyFromNetwork(manga, networkManga);
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db.insertMangaBlock(manga);
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return Observable.just(manga);
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});
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mangaObservables.add(tempObs);
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}
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return Observable.merge(mangaObservables);
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})
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.filter(manga -> manga.initialized)
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.onBackpressureBuffer()
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe(manga -> {
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// Get manga index in the adapter
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int index = getMangaIndex(manga);
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// Get the image view associated with the manga.
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// If it's null (not visible in the screen) there's no need to update the image.
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ImageView imageView = view.getImageView(index);
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if (imageView != null) {
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updateImage(imageView, manga.thumbnail_url);
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}
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});
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subscriptions.add(mMangaDetailFetchSubscription);
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}
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public void getMangasFromSource(int page) {
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@ -73,7 +139,7 @@ public class CatalogueListPresenter extends BasePresenter {
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.toList()
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.subscribe(newMangas -> {
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adapter.addItems(newMangas);
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getMangaDetails(newMangas);
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mMangaDetailPublishSubject.onNext(Observable.just(newMangas));
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});
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subscriptions.add(mMangaFetchSubscription);
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@ -90,7 +156,7 @@ public class CatalogueListPresenter extends BasePresenter {
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.toList()
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.subscribe(newMangas -> {
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adapter.addItems(newMangas);
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getMangaDetails(newMangas);
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mMangaDetailPublishSubject.onNext(Observable.just(newMangas));
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});
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subscriptions.add(mMangaSearchSubscription);
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@ -105,61 +171,11 @@ public class CatalogueListPresenter extends BasePresenter {
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return localManga;
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}
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private void getMangaDetails(List<Manga> mangas) {
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subscriptions.remove(mMangaDetailFetchSubscription);
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mMangaDetailFetchSubscription = Observable.from(mangas)
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.subscribeOn(Schedulers.io())
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.filter(manga -> !manga.initialized)
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.buffer(3)
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.concatMap(localMangas -> {
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List<Observable<Manga>> mangaObservables = new ArrayList<>();
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for (Manga manga : localMangas) {
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Observable<Manga> tempObs = selectedSource.pullMangaFromNetwork(manga.url)
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.flatMap(networkManga -> {
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Manga.copyFromNetwork(manga, networkManga);
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db.insertMangaBlock(manga);
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return Observable.just(manga);
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})
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.subscribeOn(Schedulers.io());
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mangaObservables.add(tempObs);
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}
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return Observable.merge(mangaObservables);
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})
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.filter(manga -> manga.initialized)
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe(manga -> {
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int i;
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for (i = 0; i < adapter.getCount(); i++) {
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if (manga.id == adapter.getItem(i).id) {
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break;
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}
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}
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view.updateImage(i, manga.thumbnail_url);
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});
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subscriptions.add(mMangaDetailFetchSubscription);
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}
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public void onQueryTextChange(String query) {
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if (mSearchViewPublishSubject != null)
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mSearchViewPublishSubject.onNext(Observable.just(query));
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}
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private void initializeSearch() {
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mSearchName = "";
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mSearchMode = false;
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mSearchViewPublishSubject = PublishSubject.create();
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mSearchViewSubscription = Observable.switchOnNext(mSearchViewPublishSubject)
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.debounce(SEARCH_TIMEOUT, TimeUnit.MILLISECONDS)
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.subscribeOn(Schedulers.io())
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.observeOn(AndroidSchedulers.mainThread())
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.subscribe(
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this::queryFromSearch,
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error -> Timber.e(error.getCause(), error.getMessage()));
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subscriptions.add(mSearchViewSubscription);
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}
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private void queryFromSearch(String query) {
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// If search button clicked
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@ -189,4 +205,21 @@ public class CatalogueListPresenter extends BasePresenter {
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}
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}
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private int getMangaIndex(Manga manga) {
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int i;
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for (i = 0; i < adapter.getCount(); i++) {
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if (manga.id == adapter.getItem(i).id) {
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return i;
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}
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}
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return -1;
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}
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private void updateImage(ImageView imageView, String thumbnail) {
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Glide.with(view.getActivity())
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.load(thumbnail)
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.centerCrop()
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.into(imageView);
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}
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}
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@ -8,8 +8,6 @@ import android.view.View;
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import android.widget.GridView;
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import android.widget.ImageView;
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import com.bumptech.glide.Glide;
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import butterknife.Bind;
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import butterknife.ButterKnife;
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import eu.kanade.mangafeed.R;
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@ -72,14 +70,19 @@ public class CatalogueListActivity extends BaseActivity implements CatalogueList
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});
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}
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// CatalogueListView
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@Override
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public void setSourceTitle(String title) {
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setToolbarTitle(title);
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}
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@Override
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public void setAdapter(EasyAdapter adapter) {
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manga_list.setAdapter(adapter);
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}
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@Override
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public void setScrollListener() {
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scrollListener = new EndlessScrollListener() {
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@Override
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@ -92,23 +95,19 @@ public class CatalogueListActivity extends BaseActivity implements CatalogueList
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manga_list.setOnScrollListener(scrollListener);
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}
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@Override
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public void resetScrollListener() {
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scrollListener.resetScroll();
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}
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@Override
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public void updateImage(int position, String thumbnail) {
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public ImageView getImageView(int position) {
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View v = manga_list.getChildAt(position -
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manga_list.getFirstVisiblePosition());
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if(v == null)
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return;
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return null;
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ImageView imageView = (ImageView) v.findViewById(R.id.catalogue_thumbnail);
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Glide.with(getActivity())
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.load(thumbnail)
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.centerCrop()
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.into(imageView);
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return (ImageView) v.findViewById(R.id.catalogue_thumbnail);
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}
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}
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@ -1,8 +1,8 @@
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package eu.kanade.mangafeed.view;
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import android.content.Intent;
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import android.widget.ImageView;
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import eu.kanade.mangafeed.sources.Source;
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import uk.co.ribot.easyadapter.EasyAdapter;
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public interface CatalogueListView extends BaseView {
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@ -11,5 +11,5 @@ public interface CatalogueListView extends BaseView {
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void setAdapter(EasyAdapter adapter);
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void setScrollListener();
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void resetScrollListener();
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void updateImage(int position, String thumbnail);
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ImageView getImageView(int position);
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}
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